Frame for a mask assembly



FIG. 1 is a front perspective view of a frame for a mask assembly withcertain portions shown in dashed lines.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a ride side view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is a front perspective view of the frame of FIGS. 1-7 withcertain portions shown in dashed lines.

FIG. 9 is a front view thereof.

FIG. 10 is a rear view thereof.

FIG. 11 is a left side view thereof.

FIG. 12 is a right side view thereof.

FIG. 13 is a top view thereof; and,

FIG. 14 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the frame for amask assembly which form no part of the claimed design.

CLAIM The ornamental design for a frame for a mask assembly, as shownand described.